1125 search results - page 125 / 225 » Query Answering in Inconsistent Databases |
119
Voted
SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
215
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GIS
2008
ACM
16 years 3 months ago
2008
ACM
Trip planning search (TPS) represents an important class of queries in Geographic Information Systems (GIS). In many real-world applications, TPS requests are issued with a number...
119
Voted
SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
208
Voted
ICDE
2006
IEEE
16 years 3 months ago
2006
IEEE
Database columns are often correlated, so that cardinality estimates computed by assuming independence often lead to a poor choice of query plan by the optimizer. Multidimensional...
117
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VLDB
2007
ACM
15 years 8 months ago
2007
ACM
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...